> I think there's an important difference between the implicit, intuitive, relational knowledge that we build via direct interaction, and philosophical knowledge that the other poster is thinking talking about
In the same sense that there's a distinction between counting and mathematics, or throwing things and physics, or conversations and psychology, or various other academic disciplines -- that is to say, a very artificial one.
In every topic, people think about them as a routine course of events -- they just form very simple effective theories on the subject, because their life doesn't require a more advanced one.
"Physics" the academic subject is just a very advanced version of the intuition you build about throwing balls, smashing rocks, walking on ice, and not jumping out of windows.
Similarly, your argument seems deeply confused:
The burden of proof is on the people asserting that an arbitrary distinction in what's clearly a spectrum of things is meaningful. In this case, it falls to you to show that there's a meaningful difference in kind between the sorts of thoughts a child is having about ontology (eg, that a positive version of a shape and a negative version of a shape are the same "shape") and whatever other example you want to use.
Each of you has clearly admitted that they're on the spectrum of ontological thought, because that's why you recognize it so clearly as an example, then just had special pleading of "Well, simple ontology shouldn't really count as ontology, because that would make me wrong."
So again, we see that philosophy is useful -- the "burden of proof" is a philosophical concept that lets me just reply, "No, how about you show that splitting ontological thought into 'true ontology' and 'not really ontology' is useful in the first place."